WITH RECURSIVE CAL
AS(
    SELECT MIN(MONTHLY) AS YM,0 AS MRR
    FROM MRR_DATA
    UNION ALL -- ここから再帰
    SELECT date(YM,'+1 months'),
           MRR + (SELECT NEW_MRR+EXPANSION_MRR-DOWNGRADE_MRR-CHURN_MRR
                  FROM MRR_DATA
                  WHERE MONTHLY = YM
           )
    FROM CAL
    WHERE YM <= (SELECT date(MAX(MONTHLY)) FROM MRR_DATA)
    )
   
SELECT *
FROM CAL
ORDER BY YM